人民币转换

题目描述
考试题目和要点：

1、中文大写金额数字前应标明“人民币”字样。中文大写金额数字应用壹、贰、叁、肆、伍、陆、柒、捌、玖、拾、佰、仟、万、亿、元、角、分、零、整等字样填写。（30分） 

2、中文大写金额数字到“元”为止的，在“元”之后，应写“整字，如￥ 532.00应写成“人民币伍佰叁拾贰元整”。在”角“和”分“后面不写”整字。（30分） 

3、阿拉伯数字中间有“0”时，中文大写要写“零”字，阿拉伯数字中间连续有几个“0”时，中文大写金额中间只写一个“零”字，如￥6007.14，应写成“人民币陆仟零柒元壹角肆分“。（
 
输入描述:
输入一个double数

输出描述:

输出人民币格式

import java.util.Scanner;

public class Main
{
    public static String[] arr = {"零","壹","贰","叁","肆","伍","陆","柒","捌","玖","拾"};
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext())
        {
            String num = scanner.nextLine();
            StringBuffer sb = new StringBuffer();
            String sub1 = num.substring(0, num.indexOf("."));
            String sub2 = num.substring(num.indexOf(".") + 1);
            int n1 = Integer.valueOf(sub1);
            int yi = n1 / 100000000;
            int wan = (n1 % 100000000) / 10000;
            int ge = n1 % 10000;
            int xs = Integer.valueOf(sub2);

            System.out.print("人民币");
            if (yi != 0)
                sb.append(getUpper(yi) + "亿");
            if (wan != 0)
                sb.append(getUpper(wan) + "万");
            if (ge != 0)
                sb.append(getUpper(ge) + "元");
            if (xs == 0)
                sb.append("整");
            else
            {
                int jiao = xs / 10;
                int fen = xs % 10;
                if (fen == 0)
                    sb.append(arr[jiao] + "角");
                else if (jiao == 0)
                    sb.append(arr[fen] + "分");
                else
                    sb.append(arr[jiao] + "角" + arr[fen] + "分");
            }
            System.out.println(sb.toString());

        }
    }
    public static String getUpper(int n)
    {
        StringBuffer sb = new StringBuffer();
        int qian = n / 1000;
        int bai = (n % 1000) / 100;
        int shi = (n % 100) / 10;
        int ge = n % 10;
        if (qian != 0)
            sb.append(arr[qian] + "仟");

        if (bai != 0)
            sb.append(arr[bai] + "佰");
        else if (qian != 0 && bai == 0 && (shi != 0 || ge != 0))
            sb.append("零");

        if (shi != 0 && shi != 1)
            sb.append(arr[shi] + "拾");
        else if (shi == 1)
            sb.append("拾");
        else if (bai!= 0 && ge != 0)
            sb.append("零");

        if (ge != 0)
            sb.append(arr[ge]);
        return sb.toString();
    }
}